Maria Michelle Diaz, M.D.
Emergency Medicine Physician · Derry, NH
Maria Michelle Diaz, M.D. is an emergency medicine physician with a practice address in Derry, New Hampshire, and NPI 1013142959, issued on May 21, 2009. Check the license (New Hampshire LT3226, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Maria Michelle Diaz
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- LT3226 NH
1027573 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Parkland Dr, Derry, NH 03038
- Phone
- (603) 421-2220
- Enumerated
- May 21, 2009
- Record last updated
- Jun 10, 2026
- Fax
- (603) 421-2223
- Medicare enrollment
- Enrolled (PECOS I20130114000390); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2006
- Entity
- Type 1 · individual
Also registered at 1 Parkland Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alaa Azzouqa, M.D.Hospitalist Physician1386195469
- Summer Bell, APRNFamily Nurse Practitioner1154031292
- Alexis Boyatsis, PA-CPhysician Assistant1376986935
- David Bryson, PA-CMedical Physician Assistant1043236011
- Kyle Cahill, OTR/LOccupational Therapist1720612054
- Daanish Chippa, M.D.Internal Medicine Physician1316324163
Verify Maria Michelle Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license LT3226Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average emergency medicine physician in 2024
131 Medicare Part D claims for 93 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Cephalexin20 claims
- Prednisone15 claims
- Oxycodone-Acetaminophen14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
4 hospitals and group practices
- York HospitalWells, ME · Acute Care Hospitals4 of 5 stars
- Bluewater Emergency Partners OF Brunswick, LLCYork, ME
- Emergency Medicine Services OF NH, LLCManchester, NH
- Springfield Hospital Inc.Springfield, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Emergency Medicine Physician providers in New Hampshire
There are 351 emergency medicine physician records in New Hampshire.
Other emergency medicine physician records in New Hampshire
- Clayton Abeln, MDPortsmouth, NH1740926633
- Donavon Albertson, MDPortsmouth, NH1780759027
- Elizabeth Andrada, MDExeter, NH1891853859
- Robert Anthony, MD, FRCPC, FACEPRochester, NH1760557367
- Jeremy Arnold, M.D.Keene, NH1174784557
- Samantha ArnoldPortsmouth, NH1043758238
- Marie Arringdale, M.D.Laconia, NH1013129048
- Marcia Arsnow, MDLaconia, NH1326013582
- Patricia Atchinson, DOLebanon, NH1255741369
- Baturay AydemirPortsmouth, NH1366017048
Common questions
What is Maria Michelle Diaz, M.D.'s NPI number?
Maria Michelle Diaz, M.D.'s National Provider Identifier (NPI) is 1013142959, issued on May 21, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Maria Michelle Diaz, M.D. located?
The NPPES record lists a practice address at 1 Parkland Dr, Derry, NH, 03038. Phone: (603) 421-2220. Providers update this record themselves, so call before visiting.
How can I verify Maria Michelle Diaz, M.D.'s license?
NPPES lists New Hampshire license number LT3226, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria Michelle Diaz, M.D. prescribe under Medicare Part D?
In 2024, Maria Michelle Diaz, M.D. had 131 Medicare Part D claims for 93 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.